Products

Data Converter Cleaner TUC - Unit Converter Import Export Survey Manager Tweet Controller

Developer

Article Blog Forum Interview Beginner News Startup Quiz

Users

Career

Apply Job Internship

Pricing

Login Sign Up Get a Quote

How to fetch data using Union method in LINQ?

Ethan Karla 644 24 Sep 2021

How to fetch data using the Union method from two lists?

Ethan Karla

Student

An enthusiastic, adaptive, and fast-learning person with a broad and acute interest in the discovery of new innovative drugs, I particularly enjoy collaborating with scientists from different disciplines to develop new skills and solve new challenges.

1 Answers

Ravi Vishwakarma 28 Sep 2021

The Union method or operator is used to combine multiple collections or lists into a single collection or list and return collection with unique elements.

Syntax

var result = collection1.Union(collection2)

Example

using System;
using System.Collections.Generic;
using System.Linq;
public class Program
{
 public static void Main()
 {
  List<string> count1= new List<string>() { 'UK', 'Australia', 'India', 'USA' };
  List<string> count2 = new List<string>() { 'India', 'UAE', 'Canada', 'UK', 'China', 'Pok' };
  List<string> list = count1.Union(count2).ToList();
  list.ForEach( country => Console.WriteLine(country) );
  Console.ReadLine();
 }
}

Output

UK

Australia

India

USA

UAE

Canada

China

Pok

advertising